Using Herbs to Repel Slugs and Snails

Someone suggested I put strong smelling herbs at the base of my plants to ward off the slug/snail attack. How should I hold them in place? We get wind and driving rain. The vegetable garden has a layer of cedar bark chips. This attachment has to extend all the way from the top of the 3 inch bark layer into a secure foothold down in the dirt around the collards.

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Thought you'd find this amusing. Cedar is supposed to ward off insects. Either it is working and the bug attack would be worse, or it's claim to fame is unjustified. At the very least, large cedar chips last longer than small cedar chips or pine bark.